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首页> 外文会议>Silicones and silicone-modified materials symposium >Chapter 15 Manipulating Siloxane Surfaces: Obtaining the Desired Surface Function via Engineering Design
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Chapter 15 Manipulating Siloxane Surfaces: Obtaining the Desired Surface Function via Engineering Design

机译：第15章操作硅氧烷表面：通过工程设计获得所需的表面功能

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We present a synopsis of recent accomplishment in our group in the area of surface-functionalized silicone elastomer networks. Specifically, we show that by combining mechanical manipulation of poly(dimethylsiloxane) (PDMS) networks with activation via ultraviolet/ozone (UVO) treatment and subsequent chemical modification of the pre-activated surfaces, one can generate so-called mechanically assembled monolayers (MAMs). This technology can be successfully applied to create a variety of surfaces, including dense polymer brushes, long-lived superhydrophobic surfaces, molecular gradients comprising tunable length scales and two-dimensional chemical gradients. In addition, the UVO modification of mechanically strained PDMS sheets provides a convenient route for creating "buckled" elastomeric sheets. These surfaces have a multitude of applications; ranging from anti-fouling surfaces to directed particle assembly. Finally we demonstrate control of surface wettability and responsiveness using poly(vinylmethylsiloxane) (PVMS) networks. We have shown that PVMS surfaces can be chemically tailored by reacting with thiols. The degree of response (including response rate) of such surfaces to hydrophobic-hydrophilic interactions can be adjusted by varying the chemical and structural properties of the side-group modifiers.
机译：我们介绍了我们小组在表面功能化有机硅弹性体网络领域的最新成就。具体而言，我们表明，通过将聚二甲基硅氧烷（PDMS）网络的机械操作与通过紫外线/臭氧（UVO）处理的活化以及预活化表面的后续化学修饰相结合，可以产生所谓的机械组装单层（MAM） ）。这项技术可以成功地用于创建各种表面，包括致密的聚合物刷，长寿命的超疏水表面，包含可调长度尺度的分子梯度和二维化学梯度。另外，机械应变的PDMS板的UVO改性为创建“屈曲”的弹性体板提供了一条方便的途径。这些表面具有多种应用。从防污表面到定向颗粒组装。最后，我们证明了使用聚（乙烯基甲基硅氧烷）（PVMS）网络控制表面的润湿性和响应性。我们已经表明，PVMS表面可以通过与硫醇反应进行化学修饰。可以通过改变侧基改性剂的化学和结构性质来调节此类表面对疏水-亲水相互作用的响应程度（包括响应速率）。

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